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mars1129 [50]
2 years ago
12

3.4z+ 2.8z =I need help now!!!​

Mathematics
2 answers:
Troyanec [42]2 years ago
8 0

Answer:

6.2z

Step-by-step explanation:

Basically adding 3.4 +2.8 getting 6.2 then adding z to the end of it

e-lub [12.9K]2 years ago
3 0

Answer:

6.2z

Step-by-step explanation:

its basically just 3.4 + 2.8 but you add a z.

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Find a compound proposition involving the propositional variables p, q, and r that is true when exactly two of p, q, and r are t
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Answer:

Consider the proposition C=(p∧q∧¬r)∨(p∧¬q∧r)∨(¬p∧q∧r)

Step-by-step explanation:

This compound proposition C uses the outer disjunction (∨) then the proposition is true if and only if one of the three propositions (p∧q∧¬r),(p∧¬q∧r),(¬p∧q∧r) is true.

First, it is impossible that two or three of these propositions are simultaneously true. For example, if (p∧q∧¬r) and (p∧¬q∧r) are both true, then ¬r is true (from the first conjuntion) and r is true (from the second one), a contradiction. All the other possibilities can be discarded reasoning in the same way.

Since these propositions are mutually excluyent, C is true if and only if exactly one of the three propositions is true (and false otherwise). This can only happen if exactly two of p,q, and r are true and the other one is false. For example, (p∧q∧¬r) is true when p and q are true, and r is false.

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3 years ago
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Step-by-step explanation:

23+22=45

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